How about Midnight?

Max

Oooo, I like Tank. That's a good one, Niizh

Gordie, after the Gordon Setter, because it looks like he's got both black and brown on him. Yes, I know he's not a dog but that's what came to mind. Maybe it could be Gordie after Gordon Lightfoot. Is he lightfooted?

Hershey

With my dogs I named them according to their "nationality". Heidi is a Great Dane (German). Gus is short for Gustav Augustus, because my grandkids couldn't decide which they liked best. Gus is a Rottweiler mix, also German. Your calf looks like a black angus, Scottish or Irish. So think of maybe Mactavish or just Angus, something like that. I like unusual names for my pets.

Charger
Ranger
Maestro
Bob (Bob is always my go-to name :-) )

Since he's a bottle baby could it be he's Like No Udder! LOL

Bosco

Oh, I love Midnight. VERY cute!